Ok, so here is my totally uninformed opinion...
What most that have opined about the potential precision have said is that the mechanical precision will likely not be affected by the chassis system- assuming the bedding system in the chassis is well designed and the action is properly installed. However, this is not the same as saying the rifle will shoot equally well in this chassis as it will in a more traditional stock. There is a large difference between how a barrel and action will shoot absent a human shooter (mechanical accuracy) and how it will shoot with an ugly bag of mostly water sitting behind it. These are the ergonomics we can only guess about because chassis has not yet been released.
Additionally, I’ve shot a bunch of animals and I have never had the need to bash in the skull of one. I have slit few necks, it never bashed a skull. In normal use I highly doubt th OP will find the need to bash a skull in during a range day. That said, most polymer stocks take “mortaring” fine- even inexpensive magpul moe stocks, and I doubt the butt end of this rifle is any different. If you find th need to run down range and butt stroke a steel target, your rifle will probably be no worse for wear.
So, to the 2 questions the OP is most curious to hear opinions about, will it break and will it shoot, I think the answers are it probably won’t break and it will probably shoot assuming yo can get comfortable behind it.
Now, for some editorializations. Why a bullpup for your intended application? The major advantage of a bullpup rifle is that it makes a long rifle shorter. In this case it looks to make a rifle as much as 6 whole inches shorter- I realize this is more to some than it is to others. Your intended application is laying on a tower and shooting targets from far away. Not exactly a dynamic shooting situation. In fact, laying on a tower- under 0 time pressure to make a shot- is exactly the scenario where length and weight have no affect on a rifle’s capabilities. Running and gunning is where a short rifle has merit. And, it has been pretty widely demonstrated that even really good bullpup triggers are “meh” relative to good precision triggers. In a game where you are trying to hit targets out past 1400 (that is what the op said, right?) why hamper yourself with a meh trigger? This just looks like the absolute wrong tool for the job, in every way.
Now, you’ll need to excuse me as I need to go screw in some nails with this saw I just found...
